At least to me, it seems like doing repetitive puzzles isn't likely to do much more than make you good at that type of puzzle, rather than building actual problem-solving skills. I used to play these games with pretty little actual impact outside of my score...

In math and logic, I've found a pretty great resource in https://brilliant.org/ with many quizzes and wikis that focus on the underlying connections and general problem-solving approaches, which has made me better at solving actual problems.